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Ingestion rate of a selective deposit feeder in a complex mixture of particles: Testing the energy‐optimization hypothesis 1
Author(s) -
Doyle Roger W.
Publication year - 1979
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1979.24.5.0867
Subject(s) - amphipoda , sediment , volume (thermodynamics) , ingestion , crustacean , particle size , particle (ecology) , environmental science , mineralogy , geology , chemistry , biology , ecology , thermodynamics , physics , geomorphology , paleontology , biochemistry
A simple, hyperbolic model describes the relationship between the rate at which Corophium volutator (Crustacea: Amphipoda) ingests sediment and the particle‐size spectrum in the sediment. Mixtures of natural sedimentary floc and glass spheres were used in the feeding experiments. Ingestion rate depends not only on the concentration of edible material but also on its composition as measured by the ratio of sphere volume:floc volume. The parameters of the model are therefore functions of the nutritional value of the ingested material, as required by the hypothesis that feeding rate is adjusted to maximize the energy return.